Colusa Circle Community FreeCycle Bring your castoffs too good to throw away to exchange for other treasures. No buying, no selling. Salvation Army will pick up the leftovers at the end of the day. To drop off or to reserve a space, call the Colusa Circle Merchants Assoc. 525-6155.

Easy Tips to Save Money on Your Pets, While Treating Them really well from 1 to 4 p.m. at RabbitEars, 377 Colusa Ave., Kensington. 525-6155.

Walking Tour of Historic Oakland Churches and Temples Meet at 10 a.m. at the front of the First Presbyterian Church at 2619 Broadway. Tour lasts 90 minutes. Reservations can be made by calling 238-3234. www.oaklandnet.com/walkingtours

Free Car Seat Checks From 10 a.m. to noon officers from the Berkeley Police Department will administer a car seat safety check on the 5th level of the Allston Way Garage, 2061 Allston Way between Milvia and Shattuck. Parking will be validated by Habitot. 647-1111.

Lawn Bowling on the green at the corner of Acton St. and Bancroft Way every Wed. and Sat. at 10 a.m. for ages 12 and up. Wear flat soled shoes, no heels. Free lessons. 841-2174.

Open Shop at Berkeley Boathouse from 1 to 5 p.m. at at 84 Bolivar Dr., Aquatic Park. Take part in constructing a wooden boat or help out with other maritime projects. No experience necessary. First time is free, cost is $10 per day. 644-2577. www.watersideworkshops.org

SUNDAY, JULY 19

Bike Tour of Oakland for ages 12 and up with bikes, helmets and repair kits. Meet at 10th St. entrance of Oakland Museum of California. free, but reservations required. 238-3514. www.museumca.org

Fun with Painting A children and family exporations day from 1 to 4 p.m. at the Oakland Museum of California, 10th and Oak sts. Cost is $5-$8. 238-3514. www.museumca.org

Free Sailboat Rides from 1 to 4 p.m. at the Cal Sailing Club, Berkeley Marina. Wear warm, waterproof clothing and bring a change of clothes in case you get wet. Children 5 and over welcome with parent or guardian. www.cal-sailing.org

Social Action Summer Forum with Leon Litvak, Prof. Emeritus, UCB, on“Fight the Power After the Civil Rights Movement” at at 10 a.m. at the Unitarian Universalist Church of Berkeley, 1 Lawson Rd., Kensington. 525-0302, ext. 306.

East Bay Atheists Berkeley meeting at 1:30 p.m. at Berkeley Main Library, 3rd Floor Meeting Room, 2090 Kittredge St. This month we watch James Carroll’s documentary, “Constantine’s Sword” an examination by a liberal Catholic of the trubled history of Christianity. 222-7580. www.eastbayatheists.org

Sew Your Own Open Studio Come learn to use our industrial and domestic machines, or work on your own projects, from 2 to 6 p.m. at 84 Bolivar Dr., Aquatic Park. Also on Thurs. from 2 to 6 p.m. Cost is $5 per hour. 644-2577. www.watersideworkshops.org

MONDAY, JULY 20

Reduce Your Personal and Community Carbon Footprint Four-session Climate Change Action Group, meets Mon. or Tues. at 6 p.m. at the Ecology Center in July or Aug. For specific dates see www.ecologycenter.org

Community Yoga Class 10 a.m. at James Kenney Parks and Rec. Center at Virginia and 8th. Seniors and beginners welcome. Cost is $6. 207-4501.

Three Beats for Nothing South Mostly ancient part music for fun and practice meets every Mon. at 3 p.m. at the South Berkeley Senior Center, Ellis at Ashby. 655-8863. asiecker@sbcglobal

East Bay Track Club for girls and boys ages 3-15 meets Mon. and Wed. at 6 p.m. at Berkeley High School track field. Free. 776-7451..

Small-Business Counseling Free one-hour one-on-one counseling to help you start and run your small business with a volunteer from Service Core of Retired Executives, Mon. evenings by appointment at Berkeley Public Library, 2090 Kittredge St. For appointment call 981-6148. www.eastbayscore.org

TUESDAY, JULY 21

Exploring the Mount Shasta Region Hiking, camping, cycling and more at 7 p.m. at REI, 1338 San Pablo Ave. 527-4140.

Family Program with The Bubble Lady at 6:30 p.m. at the Albany Library. Albany Library, 1247 Marin Ave. 526-3720, ext. 17.

Tuesday Tilden Walkers Join a few slowpoke seniors at 9:30 a.m. in the parking lot near the Little Farm for an hour or two walk. 215-7672, 524-9992.

End the Occupation Vigil every Tues. at noon at Oakland Federal Bldg., 1301 Clay St. www.epicalc.org

Berkeley Camera Club meets at 7:30 p.m., at the Northbrae Community Church, 941 The Alameda. 548-3991. www.berkeleycameraclub.org

Bridge for beginners from 12:30 to 2:15 p.m., all others 12:30 to 4 p.m. Sing-A-Long at 2:30 p.m. at the North Berkeley Senior Center. 981-5190.

Golden Gate Audubon Society Bird Walk at Lake Merritt and Lakeside Park. Meet at 9:30 a.m. at the large spherical cage near Nature Center at Perkins and Bellevue. www.goldengateaudubon.org

Walking Tour of Old Oakland “New Era/New Politics” highlights African-American leaders who have made their mark on Oakland. Meet at 10 a.m. at the African American Museum and Library at 659 14th St. 238-3234. www.oaklandnet.com/walkingtours

“The Attack on the Poor” with Wendy Peterson, director of Senior Services Coalition of Alameda County at Gray Panthers meeting at 1:30 p.m. at North Berkeley Senior Center, 1901 Hearst. 548-9696.

Free Screening of “The Day the Country Died“ as part of the Radical Film Nite with free popcorn and post-film discussion, at 8 p.m. at the Long Haul Infoshop, 3124 Shattuck Ave. 540-0751. www.thelonghaul.org

Sidewalk Games and Art Learn how to play hopscotch, four square, jump rope games, jacks, paint the sidewalk, and make chalk art at 1 p.m. at the Richmond Public Library, Bayview Branch, 5100 Hartnett Ave., Richmond. and 4 p.m. at the West Side Branch, 135 Washington Ave., Richmond. 620-6557. www.richmondlibrary.org

Circle of Concern Vigil meets on West Lawn of UC campus across from Addison and Oxford, Thurs. at noon and Sun. at 1 p.m. to oppose UC weapons labs contracts. 848-8055.

Three Beats for Nothing South Mostly ancient part music for fun and practice meets every Thurs. at 10 a.m. at the South Berkeley Senior Center, Ellis at Ashby. 655-8863. asiecker@sbcglobal

Fitness Class for 55+ at 9:15 a.m. at Jewish Community Center, 1414 Walnut St. 848-0237.

Summer Dance Party EveryThurs. at 7:30 p.m. at Live Oak Park. Teachers will lead a variety of dances from around the world. All ages at 7:30, teens and adults at 8:30. Cost is $2 children, $5 adults.

FRIDAY, JULY 24

“The Visitor” A film about a professor who returns home to find a young couple, undocumented immigrants, living in his apartment, at 7 p.m. at Berkeley Friends Church, 1600 Sacramento St. Discussion to follow. 524-4122.

Help Restore Cerrito Creek Help Friends of Five Creeks volunteers remove invasives to reduce flooding and improve habitat on Cerrito Creek at the foot of Albany Hill. Meet at Creekside Park, south end of Santa Clara Ave., El Cerrito at 10 a.m. .All ages welcome, snacks, tools, and gloves provided. Wear closed-toed shoes with good traction and clothes that can get dirty. 848-9358. www.fivecreeks.org

Walking Tour of Chinatown Meet at 10 a.m. at the fountain of Pacific Renaissance Plaza, Ninth St., between Webster and Franklin. 238-3234. www.oaklandnet.com/walkingtours

“How Art Helps to Preserve & Protect the Landscape for Future Generations” A conversation with Phyllis Faber and Elisabeth Ptak of the Marin Agricultural Land Trust, with photographer Marty Knapp, at 5 p.m., followed by sale of photographs to benefit MALT, at University Press Books, 2430 Bancroft Way. 548-0585. www.universitypressbooks.com

“What’s the Economy For, Anyway?” a new film by John de Graaf at 7:30 p.m. at the David Brower Center, 2150 Allston Way. Cost is $10 at the door. RSVP to events@earthisland.org

Vegetarian Cooking Class on greens from 10 a.m. to 1 p.m. at First Unitarian Church of Oakland, 685 14th St. at Castro. Cost is $55, plus $5 food and material fee. Advance registration required. 531-COOK. www.compassionatecooks.com

Peach Tasting at the Berkeley Farmers’ Market from 10 a.m. to 3 p.m. at Center St. at MLK, Jr. Way.

Family Day at MOCHA “String Things” Tug, pull, and wrap with cords and thread to make loopy paintings an dlacy sculptures, from 1 to 4 p.m. at Museum of Childrens Art, 538 9th St., Oakland. Cost is $7. 465-8770. www.mocha.org

“Funding a Society Based on Human Needs” a Peace and Freedom Party discussion on the California budget crisis at 2 pm. at Spud’s Pizza, Adeline and Alcatraz Free. 845-4360. tomcondit@igc.org.

Creature Features at Playland-Not-At-The-Beach with cast and crew, Sat. and Sun. at 10979 San Pablo Ave., El Cerrito. Costs is $10-$15. 932-8966. www.playland-not-at-the-beach.org

Lawn Bowling on the green at the corner of Acton St. and Bancroft Way every Wed. and Sat. at 10 a.m. for ages 12 and up. Wear flat soled shoes, no heels. Free lessons. 841-2174.

Car Wash Benefit for Options Recovery Services of Berkeley, held every Sat. from 9 a.m. to 2 p.m. at the Lutheran Church, 1744 University Ave. 666-9552.

Open Shop at Berkeley Boathouse from 1 to 5 p.m. at at 84 Bolivar Dr., Aquatic Park. Take part in constructing a wooden boat or help out with other maritime projects. No experience necessary. First time is free, cost is $10 per day. 644-2577. www.watersideworkshops.org

Tour of the Berkeley City Club, designed by Julia Morgan, from 1 to 4 p.m. at 2315 Durant Ave. Sponsored by the Landmark Heritage Foundation. 848-7800.

Walking Tour of Jingletown: Industry to Art Meet at 10 a.m. at the corner of Lancaster and Glascock, Oakland. Sponsored by Oakland Heritage Alliance. Cost is $10-$15. 763-9218.

Free Hands-on Bicycle Clinic Learn how to do a safety inspection, from 10 to 11 a.m. at REI, 1338 San Pablo Ave. Bring your bike and tools. 527-4140.

Social Action Summer Forum on “U.S.-Russian Relations” with Sharon Tennison, Director of the Center for Citizen Initiatives at 10 a.m. at the Unitarian Universalist Church of Berkeley, 1 Lawson Rd., Kensington. 525-0302, ext. 306.

Sew Your Own Open Studio Come learn to use our industrial and domestic machines, or work on your own projects, from 2 to 6 p.m. at 84 Bolivar Dr., Aquatic Park. Also on Thurs. from 2 to 6 p.m. Cost is $5 per hour. 644-2577. www.watersideworkshops.org